package org.apache.maven.settings.building;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * Wraps an ordinary {@link File} as a settings source.
 * 
 * @author Benjamin Bentmann
 */
public class FileSettingsSource implements SettingsSource {

  private File settingsFile;

  /**
   * Creates a new settings source backed by the specified file.
   * 
   * @param settingsFile The settings file, must not be {@code null}.
   */
  public FileSettingsSource(File settingsFile) {
    if (settingsFile == null) {
      throw new IllegalArgumentException("no settings file specified");
    }
    this.settingsFile = settingsFile.getAbsoluteFile();
  }

  public InputStream getInputStream() throws IOException {
    return new FileInputStream(settingsFile);
  }

  public String getLocation() {
    return settingsFile.getPath();
  }

  /**
   * Gets the settings file of this model source.
   * 
   * @return The underlying settings file, never {@code null}.
   */
  public File getSettingsFile() {
    return settingsFile;
  }

  @Override
  public String toString() {
    return getLocation();
  }

}
